Biotechnology Research Institute, National Research Council of Canada, 6100 Royalmount Ave, Montreal, QC, H2P 2R2, Canada.
Enzyme Microb Technol. 2012 Aug 10;51(3):163-70. doi: 10.1016/j.enzmictec.2012.05.008. Epub 2012 May 29.
This study demonstrated electricity generation in a thermophilic microbial fuel cell (MFC) operated on synthesis gas (syngas) as the sole electron donor. At 50°C, a volumetric power output of 30-35 mWL(R)(-1) and a syngas conversion efficiency of 87-98% was achieved. The observed pathway of syngas conversion to electricity primarily consisted of a two-step process, where the carbon monoxide and hydrogen were first converted to acetate, which was then consumed by the anodophilic bacteria to produce electricity. A denaturing gradient gel electrophoresis (DGGE) analysis of the 16S rDNA revealed the presence of Geobacter species, Acetobacter, methanogens and several uncultured bacteria and archaea in the anodic chamber.
本研究证明了在以合成气（syngas）作为唯一电子供体的嗜热微生物燃料电池（MFC）中进行发电。在 50°C 下，实现了 30-35 mWL(R)(-1) 的体积功率输出和 87-98%的 syngas 转化效率。观察到的 syngas 转化为电能的途径主要包括两步过程，其中一氧化碳和氢气首先转化为乙酸盐，然后被阳极嗜氧菌消耗以产生电能。16S rDNA 的变性梯度凝胶电泳（DGGE）分析表明，在阳极室内存在 Geobacter 物种、醋杆菌、产甲烷菌以及几种未培养的细菌和古菌。
